yeah it's a double-belt arrangement.  my only concern is mounting fitment.  I don't really want a bastardized tool.

It is a DC motor.  More info here: https://www.lumberjocks.com/threads/grizzly-t27417-oscillating-belt-spindle-sander-part-2.323465/

Wen/grizzly/triton/etc mechanism: 


Ridgid mechanism: